We do one of Fridays and maybe one more if it's a light week in other areas of our lives. I know other families who do them constantly and I don't get how they do it. My kids need time to chill at home in their own space and not rush around/be with friends constantly. I also like the family time but do think having friends over is important too. 1-2 times a week max. Usually on weekends we get togther with other families

I feel like the risk of injury is high, although our pediatrician owns one for her family so I figure it can't be that bad hahaha

But as I'm thinking about it, I haven't heard of anyone getting hurt on a personal trampoline (something that required going to the doctor) but I have heard of several injuries/broken bones from trampoline parks

Probably not the answer you're hoping for but a lot of trial and error. And what works for one kid may not be the best fit for the next. Nothing is permanent, take it year by year-hopefully that takes some pressure off!